1. Institute of Virology, University of Bonn Medical Centre, Bonn, Germany
2. Department of Environmental Studies and Program in Population Biology, Ecology and Evolution, Emory University, Atlanta, Georgia, USA
3. Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
4. College of Natural Sciences, Makerere University, Kampala, Uganda
5. Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
6. Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, New York, USA